Apparatus for molding seamless sash-weights.



A. S. HODGES.'

APPARATUS POR MOLDING SBAMLESS SASH WEIGHTS.

APPLICATION FILED NOV. 20, 1909.

Patented 112111.31, 1911.

5 SHEETS-SHEET 1 A. s. HODGES.

APPARATUS POR MOLDING-SEAMLESS SASH WBIGHTS.

APPLICATION FILED NOV. 20. 1909.

Patented Jan. 31, 1911.

5 SHEETS-SHEET 2.

A. S. HODGES.

APPARATUS PoR MOLDING SEAMLESS SASH WBIGHTS.

APPLICATION IILED NOV. 20. 1909.

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A. S. HODGES.

APPARATUS FOR MOLDING SEAMLESS SASH WEIGHTS.

APPLICATION FILED NOV. 20, 1909.

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A. S. HODGBS. APPARATUS POR MOLDING SBAMLESS SASH WEIGHTS.

APPLICATION FILED NO V. Z0, 19094 982,81 7. Patented .11111.31 1911.

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ADDISON S. I-IODGrES,` OF SOMERVILLE, MASSACHUSETTS, ASSIGNOR T0SEAMLESS SASH -WEIGHT COMPANY, OF SALEM, MASSACHUSETTS, A CORPORATION OFMAINE.

APPARATUS FOR MOLDING SEAMLESS SASH-WEIGHTS To all whom it may concern:

Be it known that I, ADDISON S. Honsns, a citizen of the United States,residing at Somerville, in the county of Middlesex and State ofMassachusetts, have invented eertain new and useful Improvements inApparatus for Molding Seamless SashWeights, of which the following is aspecification.

My invention relates to apparatus fer molding seamless sash weights andmore particularly to an improvement on the apparatus shown and describedin Letters-Patent No. 666,671, granted to me January 29, 1901.

An important object of my invention is to provide a device which willsimplify and expedite the manufacture of seamless sash weights.

A further object of my invention is to provide a device, so constructedthat it will be unnecessary to rap the head-core frame when removing thehead-patterns.

My invention consists in the combination and arrangement of parts,hereinafter to be described and more particularly pointed out in theclaims. v

In the accompanying drawings, forming a part of this specification andin which like numeral references are used to designate likepartsthroughout the same, Figure 1 is a vertical longitudinal sectionalview of the device carrying the head patterns. Fig. 2 is a plan view ofthe same, parts thereof being broken away. Fig. 3 is a verticalcross-sectional view, taken on the line 3 3 of Fig. 2. Fig. 3- is a viewsimilar to Fig. 3, but showing the parts inverted and the patternwithdrawn from the core-frame. Fig. 4 is a perspective view of theplaten for use in connection with the device illustrated in Fig'. 1.Fig. 5 is a similar view of the head-core frame. Fig. 6 is a similarIview of the figure-core frame. Fig. 7 is a similar view of thefigure-pattern frame. Fig. S is a top plan view of one of thefigure-patterns removed. Fig. 9 is a similar view of one of the headpatterns removed. Fig. 10 is a vertical sectional view on line 10-1O ofFig. 9. Fig. 11, is a top plan view of one of the stripping plates. Fig.12 is an enlarged fragmentary side view of one of the guide pinsemployed upon the device shown Specification of Letters Patent.

Application led November 20, 1909.

Patented Jan. 31, 1911.

Serial No. 529,074.

v in Fig. 1. Fig. 13 is a side view of the head end of the sash weight.Fig. 14E is an end view of the same. Fig. 15 is an end view of theheadcore frame and igurecore frame, the same being arranged inengagement with each other. Fig. 16 is a fragmentary top plan view of aramming device. Fig. 17 is a side view of a ramming device, carryingpattern. Fig. 18 is a side view of the device shown in Fig. 16, portionsthereof being broken away. Fig. 19 is an enlarged plan view of one ofthe impression crowns. Fig. 2O is a fragmentary plan view of thehead-core frame, the same being filled with sand. Fig. 20aM is aperspective view of one of the head-cores removed, the same being shownpartly in section, such section being taken on the line 20a-20a of Fig.20. Fig. 21. is a vertical longitudinal sectional view of the flask.

In the drawing wherein 1 have illustrated a preferred embodiment of myinvention 1 and 2 designate spaced longitudinal sides, which areconnected at their ends by means of transverse strips 3, secured uponthe lower edges thereof. The sides 1 and 2 are further provided upontheir lower edges with spaced transverse plates a, secured thereto, asat 5 and 6, respectively. Each of the spaced transverse plates t isprovided centrally thereof with a vertical guide pin 7, which extendsthrough an opening 8, upon a head-pattern support 9, which is providedat spaced intervals with depending members 10, arranged between thetransverse plates et. Each of the depending members 10, is provided uponthe lower end thereof with transverse strip 11, which is adapted toengage the sides 1 and 2 between the transverse plates 1. Thehead-pattern support 9 is arranged between the sides 1 and 2 and isadapted for relative vertical movement with reference thereto, the pins7 and members' 10, serving as a guide for such movement. Thehead-pattern support 9 is limited in its relative movement by means ofthe transverse strips 11, secured upon the members 10. The head-patternsupport 9 extends longitudinally beyond the sides 1 and 2, as at 12, fora purpose to be hereinafter set forth. The head-pattern support 9, isfurther provided upon its upper side with spaced head-patterns 13, whichare centrally disposed upon said support 9, and in longitudinalalinement with each other. By reference to Fig. 1, it will be seen thateach successive head pattern 13, is arranged above and in alinement witha corresponding pin 7, and each of the head-patterns 13 has its centerin vertical alinement with the central longitudinal axis of itscorresponding pin 7. rllhe specific structure of the head-patterns 13will be hereinafter described.

lhe sides 1 and 2 are provided upon their upper edges w-ith strippingplates 14, secured thereto by means of screws 15 or the like. rlllhestripping plates 14 are arranged to laterally engage each other and areprovided centrally thereof with openingsl, through which thehead-patterns 13 extend. Rigidly secured upon the upper side of thestripping plates 14, are spaced longitudinal side strips 17 which areconnected at their ends by transverse strips 18, thus forming arectangular recess above the stripping plates 14, adapted for thereception of a head-core frame 19, to be hereinafter described. Thehead-core frame 19tl is rectangular in shape and comprises longitudinalsides 19, connected at their ends and at spaced intervals by transversestrips 20, to form a plurality of square con'ipartments, within whichextend the head-patterns 13.

By reference to Fig. 1, it will be seen that the upper ends of thehead-patterns 13 are in horizontal. alinement with the longitudinalsides 19 and transverse strips 20, of the head-core frame. One of thelongitudinal sides 19 of the head-core frame is provided near its endswith laterally extending dovetailed projections 22, and near its centerwith a lateral projection 23, which are adapted to iit withincorresponding openings upon one of the sides 17, arranged above thestripping plates 14. The opposite side has a V-shaped groove 34X whichserves as a guide in adjusting the head molds in position adjacent thebody molds hereinafter referred to. rllhe transverse end strips 2O areprovided with outwardly extending screw-threaded trunnions 24 which aresubstantially semi-cylindrical and are provided upon their straightsidesr with the tapering portions 25, for a purpose to be explained.rEhe screw threaded semi-cylindrical trunnions 24, are adapted to bearranged within recesses 2G, formed upon the transverse strips 1S. It isto be understood that the head-core frame is readily removable from itsposition upon the stripping plates 14 between the sides 17. Thehead-patterns 13 above referred to are alike and I wiil describe onlyone of them. Each of the headpatterns 13 is provided at its lower endwith apertured ears 27, by means of which the head-pattern is secured tothe support 9. The head-pattern 13 is of the form shown in Figs. 9 and10 and comprises a body of eylindrical shape. The body of thehead-pattern 13 provided with diainetrically arranged longitudinalsemi-cylindrical recesses 28, which merge into and are connected by atransverse recess 29, which extends through the upper end of the headpattern. The head-pattern is further provided with an axial cylindricalopening 30, which merges into said transverse opening 29.

As shown in Fio. 7, I provide a figurepattern support 31, which isrectangular and provided with a rectangular recess 32, within which upona preferably removable bottom plate 322l are arranged the spacediigure-patterns 33, to be hereinafter described. Each frame may beadvantageously provided with several bottom plates having differentfigure patterns. The rectangular recess 32 is adapted to receive afigure-core frame 34d shown in FiO. (i, and which comprises spacedlongitudinal sides 34, connected at their ends and at spaced intervalsby the transverse strips 35, for forming a plurality of squarecompartments. One of the longitudinal sides 34, of the figure-coreframe, is provided with dove-tailed projections 36, and a centrallyarranged projection 37, which are adapted to fit within correspondingopenings 33 and 39, respectively, upon the support 31. The opposite sidehas a V-shaped groove 34d corresponding to the similarly disposed groove34X in the frame 19a. The core-frame 34a, shown in Fig. 6, is providedat the ends thereof with semicylindrical screw-threaded trunnions 40,which are provided with recesses 41, upon their'upper surfaces, andwhich are adapted to fit within recesses 42 near the ends of the support31. Each successive ligure-pattern 33 is adapted to be arrangedcentrally within each successive square compartment of the figure-coreframe 34, and it is to be understood that the figure-core frame isreadily removable from the support 31. Each of the figure-patterns 33,as shown in Fig. S, is circular and is provided with diametricallyarranged recesses 43 and a central recess 44, near which is arranged theraised ligure 33. The recesses 43 and the central recess 44. are adaptedto register with the recesses 23 and the central opening 30 of theheadpattern, shown in Fig. 9, as will be apparent hereiiiafter.

ln the use of my device hereinabove described, the head-core frame 19a,is arranged upon the stripping plates 14, between the side strips 17.(See Fig. 2). The molding sand is then put into the compartments formedby the sides 19 and strips 20, and which compartments contain thehead-patterns 13, The molding sand is rammed into the compartments ofthehead-core frame preferably by means of the ramming device shown in Figs.16 and 18, which comprises a body support 48, provided with a pluralityof spaced circular openings below which and registering with the sameare secured open ended cylinders 49 which are extended on the upper sideof the support 48 in the form of Haring hoppers 49. A guide pin 48"L isprovided for engagement within bracket 54, which is arranged centrallyupon the transverse end strip 18. It is to be understood that thecylinders 49 are adapted to surround the head-patterns 13, and that sandmay be poured through the cylinders 49, during the ramming process,although the sand may be placed in the compartments before the rammingoperation if desired.

As illustrated in Fig. 17, I provide a second ramming device, comprisinga longitudinal body 50, provided at spaced intervals with the rammingpins 51, which are adapted to ram the sand within the openings 30, ofpattern 13. The longitudinal body 50 is provided near the ends thereofwith guide pins 52, which extend downwardly below the same forengagement within the brackets 54. The guide pins 52, extend upwardlybeyond the longitudinal body portion 50, and are in alinement with aplurality of patterns arranged at spaced intervals upon the body portion50. After the removal of the ramming devices and the leveling ott ofsand, the longitudinal body 50 of the second ramming device is invertedand the upper ends of the guide pins 52 are inserted within guidesockets 54, which are secured to the transverse end strips 18. Thepatterns 53 are spaced from each other as above stated, and are arrangedto be directed by the guide pins 52 and the sockets 54, to one end ofthe transverse opening 28 of the head patterns '13. The patterns 53 arealike and are of the form shown in Fig. 17. Each of the patterns 53, hasa curved engaging surface as at which is adapted to form a correspendingrecess in the sand. It is to be uud-erstood that the size and shape ofthe patterns 53 may be widely varied to increase or diminish the size ofa web or bridge 64 (Fig. 13) which has for its purpose to strengthen theheads of the sash weights, it being understood, however that the opening61 adjacent such lock or bridge is to be sutcient for the reception of asuitable sash cord. The patterns 53 are removed and a mold board orplaten 55 illustrated in Fig. 4, is placed upon the head-core frame 19a.The entire device is then inverted, which may be convenientlyaccomplished by grasping the ends 12 of the head-pattern support 9. andthe ends of the platen 55. The operator then raises the ends 12 of thesupport 9, which will cause the head-patterns 13 to be withdrawn fromthe sand within the headcore frame 19a. The guide pins 7, and thestripping plates 14 remain stationary, until the head-pattern support 9is raised to engage the transverse base strips 3, when the entire devicemay be raised and the headcore frame 19tL will be left upon the platen.

The figure-core frame 3421 shown in Fig. 6, is placed within the recessupon the ligure-pattern support 31 illustrated in Fig. T. The moldingsand is then put into the figure-core frame 3l-" and rammed by anysuitable means. i mold board or platen similar to the platen shown inFig. 4, is then placed upon the ligure-core frame with projections 36and 37 within recesses 22a and 2321 and the whole is inverted. r1`hefigurepattern support 31 is then raised, and the ligure-core frame 34:lwill remain upon the platen. The figure-core fiame 34n is then placedupon the head-core frame 19a and a ring 56 is placed upon the threadedtrunnions 24 and 40, the ring 56 being provided with a set screw 56 forclamping the trunnions rigidly together. By reference to Fig. 15, itwill be obvious that the portion 25 tits within the recess 41, whichtends to prevent relative movement of the trunnions.

By reference to Fig. 21 it will be seen that 1 employ a tlask 5T, whichis non-divided and similar in construction to that shown and describedin my Patent No. 666,671, the same having a central sprite-hole 58,leading to the inner ends of core-opening 59, or molds which are formedby the withdrawal of body patterns, and lead to the head-core frame andfigure-core frame, as shown by the numerals 1 a and 34a in Fig. 21.

Vhile 1 have shown my head molding frames in connection with the bodyflasks, shown and described in my Patent No. 666,671, it is to beunderstood that they may be used in connection with any open ended bodyflasks and particularly the body flask shown in my said Patent No.666,671.

I have illustrated in Fig. 13, the upper end 60 of one of the seamlesssash weights made by my improved apparatus. The end 60 is provided witha transverse opening 61, which communicates with longitudinaldiametrically arranged recesses 62. extending inwardly from the end. Thehead 60 is further molded with an axial opening 63, which extendsbetween the recesses 62 and communicates with the transverse opening 61.One of the recesses 62 is provided adjacent the body of the weight witha curved web or bridge 64, which -partly closes the said recess 62 andstrengthens the engagement of the head with the body of the weight.

In Fig. 21 is shown a cross-sectional view of the figure-core frame andthe head-core frame in engagement with each other and filled withmolding sand and having the patterns removed. In this View is showncentral sections of sand 65, which form the axial opening G3 in the headof the weight. The dian'ietrically arranged sections of sand GG, termthe recesses (52, and a transverse scction of sand. (57 forms thetransverse opens ing 6l. The portion (i4 above referred to is formed bythe impression made by the pattern 53.

It will -be noted by reference to Fig. 2l that the central sections ofsand G5 ot the headcore and of the ligurecore abut in a separate planefrom that of the abutting edges of the trames I92L and 34a. This is dueto the fact t-hat the ends of the pins 7 terminate in a planesubstantially lower' than the upper surface ot the stripping -plates le.In the use of my apparatus, the cores are formed in the head-core trameand figurecore trame as above described.

rlhe head-core frame and figure-core trame designated by the numerals19a and 2li-t in Fig. 2l are secured together as above described andarranged transversely at one end et the tlasl 57, so that thecore-opening `'for forming the body ot the sash weight will registerwith one ot' the compartments ot the head-core frame. rIhe molten metalis then poured into the sprue hole 5S and will accordingly liow throughthe opening 59 into the coresholding frames designated at 19a and Sila.After the molten metal has cooled, and hardened, the sand in the flask5T, is broken up and the sash weights removed.

Having fully described my invention, I claim:

l. In apparatus of the character described, a supporting structure, apattern support movably mounted therein, a stripping plate connectedwith said supporting structure and provided with an opening formedtherethrough, a pattern connected with said pattern support to operatewithin said opening, a pin connected with said supporting structure, tocooperate with said pattern, and said pattern support extending beyondthe ends of the supporting structure, whereby the same may be grasped bythe operator.

2. In apparatus oi. the character described, a supporting structurehaving its ends provided with openings, a stripping plate connected withsaid supporting structure, a pattern support mounted to have relativemovement with said supporting structure and havingI its ends disposedwithin said openings, whereby said ends may be grasped by the operator,and a pattern connected with said pattern support.

In apparatus oit' the character described, a supporting structure, apattern support disposed within said supporting structure and mounted tohave relative movement with the same, said pattern support havingportions thereof extending outwardly of said supporting structure to begrasped by the operator .for etfecting the movement of said patternsupport, a pattern connected with said pattern support, and a strippingplate connected with said supporting structure.

et. In apparatus of the character described, a supporting structure, apattern, a core trame to cooperate with said pattern, in combinationwith a removable pattern to form an impression in the core near one sideof the first named pattern.

5. In apparatus of the character described, a supporting structureincluding spaced longitudinal sides, a pattern support disposed betweenand movable with relation to said sides, a stripping plateconnected withthe upper edges ot' said sides and disposed above said pattern-support,said stripping plate being provided with an opening, a pattern connectedwith said patternsupport, and said pattern-support extending beyond theends of said sides.

C. In apparatus of the character described, a supporting structure, apattern-support movably mounted therein and a stripping plate connectedwith said supporting structure and provided with an opening, a patternconnected with the pattern-support to operate within said opening, andsaid pattern-support extending beyond the ends of the supportingstructure, whereby said pattern-support may be moved.

7. In apparatus of the cha acter described, a. supporting structure, apattern, a core trame vwithin which the pattern is disposed, incombination with a support, a second pattern connected with saidsupport, and guiding means for said support so that said second patternmay form an impression in the core near one side of the lirst namedpattern.

In testimony whereof I atiix my signature in presence of two witnesses.

ADDISON S. IIODGES.

Witnesses RALPH B. lloDANirL,

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